Manitowoc Grove TMS700E User Manual

UNDERCARRIAGE TMS700E SERVICE MANUAL
8-64 Published 01-29-2015, Control # 512-01
2. Sticking spool. a. Dirt in the system. a. Change oil and flush system.
b. Distortion caused by tie bolts
being overtorqued.
b. Retorque tie bolts.
c. Flow in excess of valve rating. c. Limit flow through valve to that
recommended. Check pump output
and cylinder ratio.
d. Pressure in excess of valve
rating.
d. Check relief valve setting or pump
compensation with that
recommended.
e. Electrical failure. e. Check wiring and solenoids.
3. External leakage. a. Damaged O-ring or quad
rings.
a. Check for chipped packings and
replace.
b. Loose tie bolts. b. Retorque tie bolts.
c. Damaged solenoid. c. Replace damaged parts.
4. Solenoid failure. a. No current. a. Check power source of at least
85% of coil rating.
b. Damaged solenoid assembly. b. Replace solenoid.
c. Short in solenoid. c. Replace coil.
d. Loss of solenoid force. d. Decrease time of solenoid
energization, decrease cycle rate.
5. Outrigger vertical jack
cylinder slow or erratic.
a. Low in hydraulic oil. a. Check for leaks. Repair any found.
Add hydraulic oil to proper level.
b. Damaged main relief valve. b. Repair or replace valve.
c. Damaged holding valve seals. c. Replace holding valve seals.
d. Bent cylinder rod. d. Replace cylinder rod and seals.
e. Bent outrigger housing. e. Repair or replace outrigger
housing.
f. Damaged O-rings in swivel. f. Replace O-rings.
g. Excessive material on beams. g. Clean outrigger beams.
h. Sticking solenoid valve spool. h. Repair or replace valve spool.
i. Damaged wiring
to solenoid. i. Rep
air or replace wiring.
j. Weak brush springs on
collector rings.
j. Replace brush springs.
k. Collector ring dirty or glazed. k. Clean or deglaze collector ring.
l. Directional selector switch
sticking.
l. Clean or replace switch.
m. Main hydraulic pump
cavitation.
m. Replace or tighten hose and
fittings.
n. Worn or damaged hydraulic
pump section.
n. Repair or replace pump section.
Symptom Probable Cause Solution
Reference Only

Manitowoc Grove TMS700E Specifications

General

Brand	Manitowoc
Model	Grove TMS700E
Category	Construction Equipment
Language	English